diff options
Diffstat (limited to 'drivers/dma-buf')
| -rw-r--r-- | drivers/dma-buf/dma-buf.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index 3e4060dadb74..2c4381bb9478 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -1450,6 +1450,8 @@ int dma_buf_vmap(struct dma_buf *dmabuf, struct iosys_map *map) if (WARN_ON(!dmabuf)) return -EINVAL; + dma_resv_assert_held(dmabuf->resv); + if (!dmabuf->ops->vmap) return -EINVAL; @@ -1515,6 +1517,8 @@ void dma_buf_vunmap(struct dma_buf *dmabuf, struct iosys_map *map) if (WARN_ON(!dmabuf)) return; + dma_resv_assert_held(dmabuf->resv); + BUG_ON(iosys_map_is_null(&dmabuf->vmap_ptr)); BUG_ON(dmabuf->vmapping_counter == 0); BUG_ON(!iosys_map_is_equal(&dmabuf->vmap_ptr, map)); |